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Install a software image from a local file, URL, Secure Copy (SCP) server, or a File Transfer Protocol (FTP) server, and install it into the appliance’s inactive partition.
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When appliances within a network are operating at different software release level, the higher numbered software release determines interoperability. For more information, see “Tunnel Compatibility Mode”, and check the Release Notes to verify software version compatibility.
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Software upgrade files end with
When you install a new software image, the Appliance Manager automatically downloads it into the inactive partition. Depending on the option you choose, you can install the software image and:
Some physical appliance models (NX) enter a hardware bypass state when rebooting. This allows traffic to pass, but without the benefits of compression, acceleration, or Network Memory™.
Tip 
Best practices recommend that before upgrading (or switching to the other partition), you preserve a copy of the running configuration file by saving it to a server. For this, use the Maintenance - Backup/Restore page.
Best practices recommend that before upgrading (or switching to the other partition), you preserve a copy of the running configuration file by saving it to a server. For this, use the Maintenance - Backup/Restore page.
Tip Best practices also recommend scheduling a maintenance window to best accommodate the appliance reboot when installing an image.
Best practices also recommend scheduling a maintenance window to best accommodate the appliance reboot when installing an image.
CAUTION 
The database schema may change with software image upgrades. Because the database is in the same partition as its associated software version, going “backwards” is not an issue. However, be aware that configuration changes made since you last ran the earlier version will be lost. To verify the feasibility, consult first with Silver Peak Customer Support.
The database schema may change with software image upgrades. Because the database is in the same partition as its associated software version, going “backwards” is not an issue. However, be aware that configuration changes made since you last ran the earlier version will be lost. To verify the feasibility, consult first with Silver Peak Customer Support.
You can install the software image from any of four locations: your computer hard drive, a URL, an SCP server, or an FTP server.
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Install – to install the image into the inactive partition
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Install and set next boot partition – to install the image into the inactive partition and designate it as the partition to be used during the next boot
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Install and Reboot. – to install the image into the inactive partition, switch to that partition, and then reboot to begin running it immediately. While the Silver Peak appliance reboots, it goes into the hardware bypass state, allowing all traffic to pass through the appliance without intervention. Once the reboot is complete, the appliance comes out of the hardware bypass state and requires you to log in again.
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Select the software image’s location. Choices include Local File, URL, SCP (Secure Copy), and FTP (File Transfer Protocol).
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Your selection determines what fields display in the Install Image area:
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For Local File, browse the hard drive to locate the file.
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For SCP (Secure Copy), enter the data necessary to download the file from the SCP server.
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In this example, we’ll download the file, image-6.2.5.0_51902.img from the location,
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The full pathname includes the drive (if required), starting or root directory, and all relevant subdirectories.
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For FTP (File Transfer Protocol), enter the data necessary to download the file from the FTP server.
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The relative path is a path relative to the current working directory. For example, if the ftp login directory is /home/<UserName>/, then the relative path would begin at the next subdirectory, as in, /SWimages.
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Click Install. The browser reports your progress during download and installation.
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To select the partition now, for a later reboot, click Switch Boot Partition. The inactive image’s Next Boot value changes from no to yes.
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